Operating unit of treatment tool for endoscope



FIG. 1 is a front, top and right side perspective view of an operating unit of treatment tool for endoscope, showing our new design;

FIG. 2 is a rear, bottom and left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a front view showing a state in which the finger hook ring is rotated and the slider is moved;

FIG. 10 is a cross sectional view thereof, taken along the line 10-10 in FIG. 3; and,

FIG. 11 is a cross sectional view thereof, taken along the line 11-11 in FIG. 3.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for an operating unit of treatment tool for endoscope, as shown and described. 